Row row row your boat…

Tue, 18 Jun 2013

This is a simplified(!) version of the mechanism from yesterday's post. I'll be mounting the whole thing in a box in the morning and keeping fingers crossed that it works. I'm pleased with the way it is progressing, I'll be even more pleased if it works. The three circular pins at the lower front will fit through holes in the box side, same wth the ones at the back that you can just see. The square push rods at the top of the picture will be linked to the rower's oar, driving them in a circular motion. Hopefully a single drive, probably from the centre front pin, will drive three rowers in synchronised glory.

I had a close call here. I had spaced the holes on the two horizontal bars an arbitrary distance apart. When I put everything together the clearance between the parts was only a couple of millimeters! Phew! 

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Comments (3)

  • umehta June 19, 2013 at 1:05 am

    This is ‘unlike’¬†sketching

    This is 'unlike' sketching and erasing – you have to build paper parts and build them again.

    • Smelter June 19, 2013 at 4:58 am

      Personally, I would have

      Personally, I would have modeled it in 3D CAD, but I know Rob is a "hands on" kinda guy, and it is nice to see the various working stages of the prototype.

      • umehta June 19, 2013 at 4:23 pm

        For us, when it is done, it

        For us, when it is done, it is only one time though (with added surety and peace of mind.)

        So yes, it is nice to see…

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